109519346640 has 160 divisors (see below), whose sum is σ = 371568218112. Its totient is φ = 26464576000.

The previous prime is 109519346627. The next prime is 109519346659. The reversal of 109519346640 is 46643915901.

It is a happy number.

It is a super-3 number, since 3×109519346640³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 109519346640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 754345 + ... + 887735.

Almost surely, 2^109519346640 is an apocalyptic number.

109519346640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109519346640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185784109056).

109519346640 is an abundant number, since it is smaller than the sum of its proper divisors (262048871472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109519346640 is a wasteful number, since it uses less digits than its factorization.

109519346640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133729 (or 133723 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 109519346640 in words is "one hundred nine billion, five hundred nineteen million, three hundred forty-six thousand, six hundred forty".